/* * videobuf2-memops.h - generic memory handling routines for videobuf2 * * Copyright (C) 2010 Samsung Electronics * * Author: Pawel Osciak * Marek Szyprowski * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation. */ #ifndef _MEDIA_VIDEOBUF2_MEMOPS_H #define _MEDIA_VIDEOBUF2_MEMOPS_H #include #include /** * struct vb2_vmarea_handler - common vma refcount tracking handler * * @refcount: pointer to refcount entry in the buffer * @put: callback to function that decreases buffer refcount * @arg: argument for @put callback */ struct vb2_vmarea_handler { atomic_t *refcount; void (*put)(void *arg); void *arg; }; extern const struct vm_operations_struct vb2_common_vm_ops; struct frame_vector *vb2_create_framevec(unsigned long start, unsigned long length, bool write); void vb2_destroy_framevec(struct frame_vector *vec); #endif lite-cleanup net-next plumbingsTobias Klauser
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /include/crypto/internal/geniv.h
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/crypto/internal/geniv.h')